347638 Relief valve assembly, for Lister Petter AC1 and the AD1 engines. 40-3020903 This part has been obsoleted

This part has been obsoleted by Lister Petter and will become scare as time goes by

part number 616-01608 as copper crush washers are intended to be used only once

The large opening measures 15/16 of an inch and the smaller opening measures 5/8 of an inch

This will be item number 17 in the Lister Petter drawing

347638 Relief valve assembly, for Lister Petter AC1 and the AD1 engines. 40-3020903 This part has been obsoleted347638 Relief valve assembly, used on the AC1 and the AD1 engines. This will be item number 10 in the Lister Petter drawing. NSN The AC AB1 AD1 engines were used in a wide range of equipment, the AC1 version was used in the following equipment Amida series DLB Detour Lite, Compac P24 33 walk behind compactor, Ampac P33 24 walk behind compactor. US Military BT400 NEX D, BT 400 46 Ground support portable heater, this unit was made by Aerotech Herman